A device includes a housing and electronics disposed in the housing. A telemetry antenna is disposed in the housing and is operably coupled to the electronics. A shielding coil is disposed between the housing and the telemetry antenna. The shielding coil has a first end and a second end. The second end...http://www.google.fr/patents/US7912551?utm_source=gb-gplus-shareBrevet US7912551 - Telemetry noise reduction
